NF Schema v4.0.0

This release substantially refactors the schema CSV file, breaking it into several files per component. It also introduces some non-b/w compatible value changes (e.g. Illumina_NovaSeq_6000).

What's Changed

• revert accidental commit to main by @allaway in #129
• Modularize and conquer by @anngvu in #131

Full Changelog: v3.1.0...v4.0.0